Low surface area shearing device

Details Low surface area shearing device Low surface area shearing device

2008-01-08

2008-01-08

Addie, Raymond W (Department: 3671)

Road structure, process, or apparatus

Apparatus

Automatic control

C404S083000, C404S084100, C404S084500, C404S092000, C404S101000, C404S108000, C404S110000, C404S115000, C404S118000

Reexamination Certificate

active

07316520

ABSTRACT:
An apparatus for use in shearing paving material applied to a surface is provided. This apparatus includes a blade for shearing the asphalt mixture to a desired thickness, cylinders for raising and lowering the blade in response to elevational changes in the surface, at least one signal generator associated with each cylinder and adapted to produce a signal indicative of the elevation of the surface, and at least one signal receiver associated with each signal generator. This blade apparatus is coupled with a prime mover. The receiver is operable to activate the cylinders in response to a signal received from the generator. The blade is raised and lowered as the elevation of the surface changes in response to signals emanating from the generator allowing surface level variations to be evened out while paving.

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